I wrote an article after a reply i made in one of the threads (at another forum), basically saying what you can do on a rooted phone to make the phone run smoother and last longer, the essence of it is 3 apps, autokiller, autostart and setcpu, but have a read anyway 
Droid Den - Android Guide: 3 Must Have Apps When Rooted - Droid Den
Droid Den - Android Guide: 3 Must Have Apps When Rooted - Droid Den